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20x25x4 Air Filter
Efficiency	APR 1950	APR 1550	APR 650	Carbon	MERV 11	MERV 8	MERV 11	MERV 13	Carbon Odor
Equivalent	Merv 13	Merv 11	Merv 8	N/A	APR 1550	APR 650	APR 1550	APR 1950	N/A
Performance	Best	Better	Good	N/A	Better	Good	Better	Best	N/A
Actual Size	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75	19.5x24.5x3.75
Brand	Accumulair	Accumulair	Accumulair	Accumulair	Accumulair	White Rodgers	White Rodgers	White Rodgers	White Rodgers
Item #	FD20X25X4	FA20X25X4	FB20X25X4	FO20X25X4	FA20X25X4=DF	FB20X25X4=DWR	FA20X25X4=DWR	FD20X25X4=DWR	FO20X25X4=DWR
Purchase	$25.07 Min Qty: 2 Order Options	$21.11 Min Qty: 2 Order Options	$21.11 Min Qty: 2 Order Options	$34.31 Min Qty: 2 Order Options	$21.11 Min Qty: 2 Order Options	$21.11 Min Qty: 2 Order Options	$21.11 Min Qty: 2 Order Options	$25.07 Min Qty: 2 Order Options	$34.31 Min Qty: 2 Order Options
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20x25x4

Air Filter

Efficiency: APR 1950

Equivalent: Merv 13

Performance: Best

Actual Size: 19.5x24.5x3.75

Brand: Accumulair

Item # FD20X25X4

$25.07

Min Qty: 2

Order Options

Efficiency: APR 1550

Equivalent: Merv 11

Performance: Better

Actual Size: 19.5x24.5x3.75

Brand: Accumulair

Item # FA20X25X4

$21.11

Min Qty: 2

Order Options

Efficiency: APR 650

Equivalent: Merv 8

Performance: Good

Actual Size: 19.5x24.5x3.75

Brand: Accumulair

Item # FB20X25X4

$21.11

Min Qty: 2

Order Options

Efficiency: Carbon

Equivalent: N/A

Performance: N/A

Actual Size: 19.5x24.5x3.75

Brand: Accumulair

Item # FO20X25X4

$34.31

Min Qty: 2

Order Options

Efficiency: MERV 11

Equivalent: APR 1550

Performance: Better

Actual Size: 19.5x24.5x3.75

Brand: Accumulair

Item # FA20X25X4=DF

$21.11

Min Qty: 2

Order Options

Efficiency: MERV 8

Equivalent: APR 650

Performance: Good

Actual Size: 19.5x24.5x3.75

Brand: White Rodgers

Item # FB20X25X4=DWR

$21.11

Min Qty: 2

Order Options

Efficiency: MERV 11

Equivalent: APR 1550

Performance: Better

Actual Size: 19.5x24.5x3.75

Brand: White Rodgers

Item # FA20X25X4=DWR

$21.11

Min Qty: 2

Order Options

Efficiency: MERV 13

Equivalent: APR 1950

Performance: Best

Actual Size: 19.5x24.5x3.75

Brand: White Rodgers

Item # FD20X25X4=DWR

$25.07

Min Qty: 2

Order Options

Efficiency: Carbon Odor

Equivalent: N/A

Performance: N/A

Actual Size: 19.5x24.5x3.75

Brand: White Rodgers

Item # FO20X25X4=DWR

$34.31

Min Qty: 2

Order Options

The manufacturer has discontinued the MERV 6 / APR 450 filters from their line up, our suggested replacement is the MERV 8 / APR 650 Gold filter, you may see the Emerald MERV 6 / APR 450 still on the website, we are actively removing that MERV/APR

** The typical ship time for orders is now around 15 to 20 business days **

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20x25x4

Air Filter

Efficiency

APR 1950

APR 1550

APR 650

Carbon

MERV 11

MERV 8

MERV 11

MERV 13

Carbon Odor

Equivalent

Merv 13

Merv 11

Merv 8

N/A

APR 1550

APR 650

APR 1550

APR 1950

N/A

Performance

Best

Better

Good

N/A

Better

Good

Better

Best

N/A

Actual Size

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

19.5x24.5x3.75

Brand

Accumulair

Accumulair

Accumulair

Accumulair

Accumulair

White Rodgers

White Rodgers

White Rodgers

White Rodgers

Item #

FD20X25X4

FA20X25X4

FB20X25X4

FO20X25X4

FA20X25X4=DF

FB20X25X4=DWR

FA20X25X4=DWR

FD20X25X4=DWR

FO20X25X4=DWR

Purchase

$25.07

Min Qty: 2

$21.11

Min Qty: 2

$21.11

Min Qty: 2

$34.31

Min Qty: 2

$21.11

Min Qty: 2

$21.11

Min Qty: 2

$21.11

Min Qty: 2

$25.07

Min Qty: 2